Artist Brian Goggin hopes to bring a block of ice from the Greenland ice sheet and bring it here, to New York City, where it will reside for the next 488 years. According to SF Weekly, it would be kept in a (hopefully rent-controlled!) temperature-controlled room, and is meant to show the effects of global warming.
Keeping with that theme, the team "will take extreme measures to make the expedition 'post fuel,' such as using hand tools specially designed for the expedition and as few combustion engines as possible to transport the team, the cargo, and, after extraction, the ice." You can read more about the concept and their removal and transportation procedure here.
Goggin picked the number 488 because it was that many years ago that Manhattan was discovered by Captain Giovanni da Verrazzano. Of course. [via Laughing Squid]